V8 Binding: Introduce toNativeWithTypeCheck

Source/bindings/tests/results/V8TestInterfaceConstructor.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 75 matching lines @@
 
     V8DOMWrapper::associateObjectWithWrapper<V8TestInterfaceConstructor>(impl.release(), &V8TestInterfaceConstructor::wrapperTypeInfo, wrapper, info.GetIsolate(), WrapperConfiguration::Dependent);
     v8SetReturnValue(info, wrapper);
 }
 
 static void constructor2(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ConstructionContext, "TestInterfaceConstructor", info.Holder(), info.GetIsolate());
     V8TRYCATCH_VOID(double, doubleArg, static_cast<double>(info[0]->NumberValue()));
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, stringArg, info[1]);
-    V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate()) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[2])) : 0);
+    V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[2]));
     V8TRYCATCH_VOID(Dictionary, dictionaryArg, Dictionary(info[3], info.GetIsolate()));
     if (!dictionaryArg.isUndefinedOrNull() && !dictionaryArg.isObject()) {
         exceptionState.throwTypeError("parameter 4 ('dictionaryArg') is not an object.");
         exceptionState.throwIfNeeded();
         return;
     }
     V8TRYCATCH_VOID(Vector<String>, sequenceStringArg, toNativeArray<String>(info[4], 5, info.GetIsolate()));
     V8TRYCATCH_VOID(Dictionary, optionalDictionaryArg, Dictionary(info[5], info.GetIsolate()));
     if (!optionalDictionaryArg.isUndefinedOrNull() && !optionalDictionaryArg.isObject()) {
         exceptionState.throwTypeError("parameter 6 ('optionalDictionaryArg') is not an object.");
         exceptionState.throwIfNeeded();
         return;
     }
-    V8TRYCATCH_VOID(TestInterfaceEmpty*, optionalTestInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[6], info.GetIsolate()) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[6])) : 0);
+    V8TRYCATCH_VOID(TestInterfaceEmpty*, optionalTestInterfaceEmptyArg, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[6]));
     ExecutionContext* context = currentExecutionContext(info.GetIsolate());
     Document& document = *toDocument(currentExecutionContext(info.GetIsolate()));
     RefPtr<TestInterfaceConstructor> impl = TestInterfaceConstructor::create(context, document, doubleArg, stringArg, testInterfaceEmptyArg, dictionaryArg, sequenceStringArg, optionalDictionaryArg, optionalTestInterfaceEmptyArg, exceptionState);
     v8::Handle<v8::Object> wrapper = info.Holder();
     if (exceptionState.throwIfNeeded())
         return;
 
     V8DOMWrapper::associateObjectWithWrapper<V8TestInterfaceConstructor>(impl.release(), &V8TestInterfaceConstructor::wrapperTypeInfo, wrapper, info.GetIsolate(), WrapperConfiguration::Dependent);
     v8SetReturnValue(info, wrapper);
 }
@@ skipping 63 matching lines @@
     data->templateMap(currentWorldType).add(&wrapperTypeInfo, UnsafePersistent<v8::FunctionTemplate>(isolate, templ));
     return handleScope.Escape(templ);
 }
 
 bool V8TestInterfaceConstructor::hasInstance(v8::Handle<v8::Value> jsValue, v8::Isolate* isolate)
 {
     return V8PerIsolateData::from(isolate)->hasInstanceInMainWorld(&wrapperTypeInfo, jsValue)
         || V8PerIsolateData::from(isolate)->hasInstanceInNonMainWorld(&wrapperTypeInfo, jsValue);
 }
 
+TestInterfaceConstructor* V8TestInterfaceConstructor::toNativeWithTypeCheck(v8::Isolate* isolate, v8::Handle<v8::Value> value)
+{
+    return hasInstance(value, isolate) ? fromInternalPointer(v8::Handle<v8::Object>::Cast(value)->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex)) : 0;
+}
+
 v8::Handle<v8::Object> V8TestInterfaceConstructor::createWrapper(PassRefPtr<TestInterfaceConstructor> impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     ASSERT(impl);
     ASSERT(!DOMDataStore::containsWrapper<V8TestInterfaceConstructor>(impl.get(), isolate));
     if (ScriptWrappable::wrapperCanBeStoredInObject(impl.get())) {
         const WrapperTypeInfo* actualInfo = ScriptWrappable::getTypeInfoFromObject(impl.get());
         // Might be a XXXConstructor::wrapperTypeInfo instead of an XXX::wrapperTypeInfo. These will both have
         // the same object de-ref functions, though, so use that as the basis of the check.
         RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(actualInfo->derefObjectFunction == wrapperTypeInfo.derefObjectFunction);
     }
@@ skipping 12 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestInterfaceConstructor* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore